Hi, what do you want to do?
Brian McLogan
Completing the square in three examples
๐ Learn how to complete the square to solve a quadratic equation. Completing the square is allows us to create a binomial squared so that we can solve using the square root method. Solving by completing the square is preferred when a...
Brian McLogan
Solving an equation by completing the square
๐ Learn how to solve quadratic equations by completing the square. When solving a quadratic equation by completing the square, we first take the constant term to the other side of the equation and create a perfect square trinomial with...
Brian McLogan
How to factor a quadratic in your head when a=1
๐Learn how to factor quadratics. A quadratic is an algebraic expression having two as the highest power of its variable(s). To factor an algebraic expression means to break it up into expressions that can be multiplied together to get...
Brian McLogan
Solve using the perfect square trinomial factoring technique
๐Learn how to solve a quadratic equation by factoring a perfect square trinomial. A perfect square trinomial quadratic equation is of the form y = x^2 +2cx + c^2, where c is a perfet square. There are couple of ways we can solve a...
Brian McLogan
Solving a factored quadratic equation using the zero product property
๐Learn how to solve a quadratic equation using the zero product property. When a quadratic equation has been factored or is given in factored form, we can solve the quadratic equation by applying the zero product property. The zero...
Brian McLogan
Find the value that creates a perfect square trinomial
๐ Learn how to find the value c that completes the square in a quadratic expression. A quadratic expression is an expression whose highest exponent in the variable(s) is 2. It is of the form ax^2 + bx + c where a, b, and c are constants....
Curated OER
How was the Quadratic Formula Derived?
If you or your class members are interested in how the quadratic formula is derived, then take a look at this video! The tutorial takes you through each step necessary to derive the quadratic formula from the general form for a quadratic...
Curated OER
How Do You Solve a Quadratic Equation with Complex Solutions by Completing the Square?
The quadratic equation x2,3,4x + 5 = 0 is solved by completing the square in this video. Two complex solutions are found and are checked in the original equation to verify that they are solutions.
Curated OER
What's the Formula for the Square of a Sum?
The teacher uses the FOIL method to multiply out the square of a sum to prove the equation.
Curated OER
What's the Formula for the Square of a Difference?
The teacher uses the FOIL method to multiply out the square of a difference to prove the equation.
Khan Academy
Khan Academy: Algebra Ii: Recognizing a Perfect Square Quadratic
Demonstrates how to solve a quadratic equation by factoring where the first step is to set the equation equal to zero. The quadratic polynomial in the example is a perfect square trinomial. [3:19]
Khan Academy
Khan Academy: Algebra: Completing the Square 1
Demonstrates how to use the completing the square method to identify a constant value for a given trinomial to create a perfect square trinomial. Practice problems available. [3:22]
Khan Academy
Khan Academy: Algebra: Completing Perfect Square Trinomials
Explains how to use the completing the square method to determine what constant value can be added to a given polynomial to create a perfect square trinomial. [3:28]
Khan Academy
Khan Academy: Algebra: Special Products of Polynomials 2
Video illustrates how to find the square of a binomial difference to represent the area of a given square. [5:12]
Khan Academy
Khan Academy: Algebra: Special Products of Polynomials 1
Video demonstrates how to find the square of a binomial sum. [3:19]
Khan Academy
Khan Academy: Algebra: Factoring Perfect Square Trinomials
Video demonstrates how to recognize and factor perfect square trinomials. [4:54]
Khan Academy
Khan Academy: Algebra: Factoring Special Products 2
Video demonstrates how to recognize and factor perfect square trinomials. The example problem is in the form ax^4 - bx^2 + c. [2:25]
Khan Academy
Khan Academy: Algebra: Square a Binomial
Video demonstrates how to find the square of a binomial as a special case of multiplying binomials. [3:38]
Khan Academy
Khan Academy: Completing Perfect Square Trinomials
Completing Perfect Square Trinomials.
Khan Academy
Khan Academy: Quadratic Odds and Ends: Ca Algebra I: Factoring Quadratics
This video demonstrates an understanding of factoring quadratic equations.
Khan Academy
Khan Academy: Factoring Quadratics: Example: Factoring Perfect Square Trinomials
Factoring perfect square trinomials
Khan Academy
Khan Academy: Square a Binomial
Video demonstrates how to find the square of a binomial as a special case of multiplying binomials.